20/52 About this product
Bosch Rexroth AG, A2FM/A2FE Series 70, RE 91071-01-B/03.2015
5.2.2 Functional description
A hydraulic motor converts hydrostatic energy into mechanical energy. Hydraulic fluid
is fed to the cylinder bores through the working ports(5) and the control plate(4).
The pistons(2) in the cylinder bores execute a stroke that is converted into rotary
movement by the pistons on the drive shaft flange(6). During this process, the
pistons move the cylinder(3) and generate an output torque on the drive shaft. This
output torque increases with the pressure difference between the high- and low-
pressure sides. The output speed is proportional to the inward flow and inversely
proportional to the displacement of the hydraulic motor.
5.3 Product identification
The axial piston unit can be identified from the name plate. The following example
shows an A2FM name plate:
CNR:
MNR:
SN:
FD:
Rotation:
DE–89275 Elchingen
Made in Germany
X1234567890Y
R90XXXXXXX
SC: X
12345678
Rexroth
15W12
m XXX kg
7202
Typ: A2FMM080/70NWVN4Z902T00-0
1
2
7
3
4
5
6
12
11
10
9
8
Fig. 3: Name plate A2FM
1 Manufacturer
2 Sample category (optional)
3 Internal plant designation
4 Specified area for inspection stamp
5 Direction of rotation (viewed on drive
shaft) – here: bi-directional
6 Weight (optional)
7 Bar code
8 Manufacturing date
9 Serial number
10 Material number of the axial piston unit
11 Type code
12 Customer material number
Motor function
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